Question 1

What's the difference between oil-based and alcohol-based permanent markers?

Accepted Answer

Oil-based permanent markers bond more aggressively to non-porous surfaces like metal, glass, and plastic, making them the better choice for industrial or outdoor marking. Alcohol-based markers dry faster, produce less odour, and are generally safer for indoor use — but their adhesion on slick surfaces is weaker and they may fade more quickly under UV exposure. For paper and cardboard, either formulation works well. For anything else, check the substrate compatibility on the packaging before buying.

Question 2

Which permanent marker brand is best for everyday office use?

Accepted Answer

Edding is our recommendation for everyday office use — it offers the best combination of cap seal quality, xylene-free formulations, and consistent nib performance at a price that makes sense for bulk buying. Sharpie is the more recognisable name and performs excellently, but at a higher average price point. For occasional use, a Sharpie Fine Point is hard to fault. For a stationery cupboard that needs restocking regularly, Edding's value proposition is stronger.

Question 3

Can permanent markers write on plastic and metal?

Accepted Answer

Yes, but only if the marker is specifically formulated for non-porous surfaces — not all permanent markers are. Look for packaging that explicitly states multi-surface, metal, or plastic compatibility. Oil-based ink formulations (common in Edding and Artline professional ranges) adhere best to slick substrates. Alcohol-based markers like standard Sharpies will write on plastic but may smear or fade more quickly, especially if the surface is handled regularly.

Question 4

Are permanent markers safe to use in a classroom or with children?

Accepted Answer

Only if they carry AP certification or are explicitly labelled non-toxic and xylene-free. Standard solvent-based permanent markers produce fumes that are unsuitable for children or poorly ventilated classrooms. Staedtler and Edding both offer xylene-free ranges that are far safer for educational settings. Always check the label — "permanent" does not automatically mean safe, and some professional-grade markers contain solvents that require adequate ventilation even for adults.

Question 5

Why do my permanent markers dry out so quickly?

Accepted Answer

Almost always a cap seal issue. If the cap fits loosely or isn't clicked fully closed after each use, solvent evaporates rapidly and the nib dries out within days. Ventilated caps with a snap-fit closure — standard on Edding and quality Sharpie markers — retain ink significantly longer. Storing markers horizontally (rather than nib-down) also extends lifespan by preventing ink from pooling at the tip. A marker stored properly should last months between uses; one left uncapped for an hour may be unusable.

Question 6

Is it worth buying a bulk pack of permanent markers?

Accepted Answer

Only if you genuinely need volume in a single colour. Bulk packs like the Stanley 72-piece or Sharpie 12-packs bring the per-marker cost down considerably compared to buying singles — but they're almost always single-colour, which limits their usefulness for anything beyond industrial labelling or warehouse marking. For mixed-use or creative work, a 4-pack assorted set around 7 £ gives you more flexibility at a sensible price. Do the per-unit maths before committing to a bulk buy.

Question 7

What permanent markers should I avoid for writing on dark surfaces?

Accepted Answer

Avoid standard black or dark-coloured markers on dark substrates — the result will be invisible regardless of ink quality. For dark surfaces, you need either metallic markers (Sharpie Metallic in gold, silver, or bronze is a reliable choice) or white/light-coloured high-opacity markers. Standard permanent markers, even premium ones, lack the opacity to show on dark paper, black plastic, or coloured packaging. This is a common and frustrating mistake — check the opacity rating if the packaging mentions it.

Permanent Markers Price Comparison

Permanent Markers price comparison UK